Create placeholders for documenting release by repository

Change-Id: I0e4af607de9e6aac3424676f344714e0d9e6fde8
diff --git a/howto/code/voltha-protos.rst b/howto/code/voltha-protos.rst
index 2403b63..71da5e1 100644
--- a/howto/code/voltha-protos.rst
+++ b/howto/code/voltha-protos.rst
@@ -1,3 +1,5 @@
+.. howto_code_voltha-protos:
+
 Modifying repository voltha-protos
 ==================================
 
@@ -16,9 +18,9 @@
     cd voltha-protos
     vi ...
 
-    make build
-    make test
-    make lint
+    % make lint
+    % make build
+    % make test
 
 .. list-table:: Build & Test locally
    :widths: 30, 80